Machine for rodent destruction.



J. D. LONG, D. H.' GURRIE @L F. SIMPSDN. MAOHIfE FR ROBERT DESTRUCTION.APPLIGATIOH FILED Dnc. n, 1912.

1,059,622 mmm@ Apr. 22, 1913.

.4 SHEETS-SHEET 1.

J. D. LUNG, D. H. CURRIB & P. SIMPSON. MACHINE FOB RODENT DESTRUCTION.

APPLIOATION NLBD DBG. 2. 1912.

. 1,059,622.` y Patented Apr.22,1913.

4 SHEETS-SHEET 2.

MACHINE PGR RODENT DESTRUCTION.

APPLICATION FILED DEC.2,1912.

Patented Apr. 22, 1913 4 SHEETS-SHEET 3.

J. D. LONG, D. H. .CURRIE & F. SIMPSON MACHINE POR RODENT. DESTRUCTION.

APPLIOATION FILED DBC. 2, 1912,

`Patented Apr. 22, 1913.

4 SHEETS-ausm 4.

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cerimoniali.

To all vwko/m, t may concern.'

Be it known that we, JOHN D. LONG, DeivaLn H. Connie, end FRIENCHSIMPSON, citizene of the United States, residing at lll New Montgomery$treet, in the city and county of San Francisco, State of California,have invented ehew and useful Machine for Rodent Destruction; anol Wehereby state and ailirin that this lthachine, if patent he granted,Shall be used liy the Government, or any of its 'officers or employeesin prosecution ot' Work for the Government, or hy any other person inthe United States Wit-limitl payment ot' any royalty thereon. Theiiollowing nre specilications of herein-nained machine.

Uur invention relates to improvements in machines for the application ofcarbon bisulid vapor for the destruction of rodents that, live inburrows. 'ln these machines air is forced with a rotary motion over asmall quantity of liquid carbon hisulid in a closed receptacle and bymeans of e device .for measuring the quantity of liquid, any olesiredstrength of carbon bisultid may be oli-- "the objects of ourimprovements are, first: To provide an eflicient apparatus for rodenteradication. Second: To provide an apparetus that can he applied duringthe entire year without regard to season. Third:` To provide enapparatus of low costof construction, maintenance, and operation.Fourth: To provide an apparatus of light Weight and easy operation.

life attain these objects by the mechanism illust ated in theaccompanying draivinfr, in Which- Figure l is a vertical Section throughthe entire apparatus; Fig. 2 is an elcvntion of the entire apparatus;Fig'. 3 is a horizontal section through pump chamber l, `annular tunlii7., und air passage i). Fig. l is e ver tical section through thethree-r iv valve 1G in the position as: shown in Fig. .2. Fig. 5 is nvertical section through 'the three-wey valve lli when the lioniilc en i\'ci"rali v downward; Fig. 13 in a horizontal Section through theapparatus, et the center ot the oplnings l? Venel ila' into thevuporizing chamber, through the tleflector S21.

Specification of Letters Patent.

Uwe. .eff if menten -non 23e.,

hpplicationlecl December 2, 1912. Seriel No. 'ft

The same numerals reifer to similar parte throughout the six views.

Referring to the drawing, l indicates: the cylinder of e pump in whichVieciproeatee n plunger l0 having n plunger stem ll passing through thetop 25' of the cylinder and; connectecl with handle le. Said plunger ismade nir-tight hy pecking 13. cnil ie heltlL to plunger stein ll bylocltnut L2. Said cylinder has et its bottoni 5 vaivecl inlets 7 foradmitting nir entering through holes G in an extended Weill below thebottoni of said cylinder, the air passing?7 between Said bottoni and thetop of a vaporizing cheminer il, and also 'has valved cir-inlets i3?" inite top 25. It also has valved air out-lets and in its Wall close to thetop and bottoni respectively, Suid nir outlets opening in if.rectengulnr conduit 9. Thus the pnnip is double noting. The air flowingfrom the cylinder into said conduit. 9 llovvs from the lower end thereofthrough an opening 18 into the vaporizing chamber and in order that theair may thoroughly voporize the hisullicl of carbon furnished thereto,hereinafter explained,

said air ie given a rotary motion hy menne of a delectory 2l extendingrohliquely from Said wall.

C 2 Jurrounding the pump cylinder is 1n annular tank having n illing,Iopening; 3 and which contains hisullici of curiion or any other suitablevanorizahle liquid. From Suid tank the liquid flown by a. pipe 29 to :i'alve casing 30, controlled hy a three-way valve lll having a handle 3l,nini connected with o glass measuring veeeel l5 having' in its lop usmall air vent Q0. When using the apparatus the operator inovee thehandle 3l into the lnirizontal position. ns shown in Fin. the liquidlthen lowing into the veeeel l5. When the veesel l5 is'- iiull. lic'then moves the handle into :i vertical downwardly cX- ienrlingposition. whereupon the liquid Hows iii-om the nic-neming' vesscl l'liythe pipe 'l into the vaporiziug' ehnuiheif Al. vrlfhe opA maxtor thenrcciproceles the pump plunger, :unl vaporir/.es the liisultirl et carbonin the vngiori'fzingg; chunilic which in thon 'i'orccil through n Short.enfuit l? into e ile pipi, not Shown. the lower enil of vfliicl'i into'the huriow of the reflent or if' mal desired to be destroyed: Theextended wall of the apparatus, when in operation, is held to the groundby means of iron footrests 19, andits bottom is protected by a conduitconnecting said vessel with the annular chamber, a vaporizng chamber, acon duit connecting sald vessel w1th the Vaporizmg chamber, a 'three-WayValve controlling said conduits, a conduit leading from the pump to thevaporizing chamber, a deector 15 extending obliquely from the Wall ofthe vaporizing chamber to direct tangential-115' the air flowing intosaid vaporizing chamber, and a spout extending from said Vaporzingchamber, with which a'l hose can be 20 connected.

JOHN D. LONG. l DONALD H. CURRIE. FRIENCH SIMPSON.

nWitnesses A. H.GLENNAN, E. L. BARBER.

